suds delivery in wales - sustainable drainage system...suds in wales 06/09/2018 1 suds delivery in...

SuDS in Wales 06/09/2018

1

SuDS Delivery in Wales 6th September 2018

Key Facts

Welsh Water Capital Delivery Alliance

• We have five Alliance partners

• Which equates to around 1000 people

• We currently have circa 1400 live capital schemes being designed and delivered by our in-house Engineering Delivery Team and Alliance Partners

• We submit around 150 planning applications a year

• This equates to circa £1.3m of investment per day during this AMP


2

Llanelli and Gowerton

The Loughor


3

Loughor Estuary – Pre-1997 discharges

Loughor Estuary – Post-1997 discharges


4

Developing solutions

Storage won’t work in

this catchment!


5

Llanelli Overview

• Investment in Llanelli and Gowerton :-

• AMP5 £15m

• AMP6 NEP £26m – 7nr. Intermittent Discharges

• NRW L2 Driver £73m – Northumberland SPS and Both Llanelli and

Gowerton WwTW

• Maintenance improvements of £5m – Halfway SPS

• Total Permeable Area removed by end of AMP6 >44 Ha

• Total flow removed during a 1:5 year storm – 6,116 l/sec

• “Smart Networks” has ‘mobilised’ >25,000 cu.m of previously unused storage

across the network

• Peak Flow Equivalent Treatment – PFET – used at Llanelli WwTW

Investment


6

Stebonheath Primary School (AMP5)

Queen Mary’s Walk (AMP5)


7

Glevering Street (AMP5)

— £2m scheme, part funded via the European Regional Development Fund

— Mix of green infrastructure and below ground interventions

— Close engagement needed with residents

— Lessons learnt

Swale - before

Cambrian North basin – Before (AMP6)


8

Cambrian North basin - After (AMP6)

Station road

16 Station Road


9

Station road

17

Station Road

Asda Phase 2

18

Station Road


10

Welsh Water 2050

19

• Strategic vision with the goal of resilience by

2050

• Strategic response 15 – using nature to reduce

flood risk and pollution

• Recognises RainScape as a tool to be used in

managing a range of issues and deliver multiple

benefits

• Resilient solutions will provide the best value

solution, whilst managing catchment risk

• Close working with local authorities and others

needed. It cannot be delivered in isolation.

suds delivery in wales - sustainable drainage system...suds in wales 06/09/2018 1 suds delivery in...

Documents